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EP1667380B1 - Procédé de transmission d'informations entre une source et une destination par une première unité de réseau, un réseau et une seconde unité de réseau - Google Patents

Procédé de transmission d'informations entre une source et une destination par une première unité de réseau, un réseau et une seconde unité de réseau Download PDF

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Publication number
EP1667380B1
EP1667380B1 EP04292865A EP04292865A EP1667380B1 EP 1667380 B1 EP1667380 B1 EP 1667380B1 EP 04292865 A EP04292865 A EP 04292865A EP 04292865 A EP04292865 A EP 04292865A EP 1667380 B1 EP1667380 B1 EP 1667380B1
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EP
European Patent Office
Prior art keywords
customer
network
information
service
identifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04292865A
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German (de)
English (en)
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EP1667380A1 (fr
Inventor
Michaël Andries Thomas Beck
François Pierre Constant Fredricx
Jeanne Emmanuelle Rita De Jaegher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Alcatel Lucent SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Lucent SAS filed Critical Alcatel Lucent SAS
Priority to EP04292865A priority Critical patent/EP1667380B1/fr
Priority to PCT/EP2005/012226 priority patent/WO2006058612A1/fr
Priority to KR1020077012512A priority patent/KR101141395B1/ko
Priority to CNB2005101257663A priority patent/CN100542134C/zh
Priority to US11/291,964 priority patent/US8094657B2/en
Publication of EP1667380A1 publication Critical patent/EP1667380A1/fr
Application granted granted Critical
Publication of EP1667380B1 publication Critical patent/EP1667380B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H04L12/4645—Details on frame tagging
    • H04L12/465—Details on frame tagging wherein a single frame includes a plurality of VLAN tags
    • H04L12/4658—Details on frame tagging wherein a single frame includes a plurality of VLAN tags wherein a VLAN tag represents a service provider backbone VLAN, e.g. B-Tag, S-Tag
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/302—Route determination based on requested QoS
    • H04L45/306—Route determination based on the nature of the carried application

Definitions

  • the invention relates to a method for transmitting information from a source via a first network unit and a network and a second network unit to a destination, which method comprises the step of using a service identifier for routing the information through the network.
  • Examples of such a source and of such a destination are subscribers, examples of such a first network unit and of such a second network unit are access multiplexers, and an example of such a network is a metropolitan Ethernet network.
  • a prior art method is known from US 6,618,388 B2 , which discloses in its Figure 1 a first switch (a first network unit) coupled to a second switch (a second network unit) via a virtual metropolitan area network core (a network).
  • a virtual metropolitan area network identifier (a service identifier) is tagged to data packets (information) for routing the data packets through the virtual metropolitan area network core.
  • This virtual metropolitan area network identifier associates the virtual metropolitan area network with a customer (a source) from which the data packet originated.
  • the European patent application EP 1408655 relates to the issue of providing a fast, inexpensive and reliable system that can offer a virtual private customer-based network, wherein inter-office network connections are achieved using the Internet infrastructure. To achieve this, it makes use of a double tagging engine within a VPLS, a TSL, a VPSNS, or any Layer 2 VPN".
  • the basic idea of D1 is to route a packet through the network by using lookup tables in the network components and by identifying the outgoing port bit map from an address look-up table based on the destination address and the network identifier of the packet.
  • the known method is disadvantageous, inter alia, owing to the fact that it is relatively complex.
  • the virtual metropolitan area network identifier is to be derived from a virtual local area network identifier. This virtual local area network identifier needs to be allocated to the customer by the network.
  • the method according to the invention is characterized in that the service identifier does not involve a customer virtual local area network identifier.
  • the service identifier depends on a destination property defined in the information and not on a source address or the customer virtual local area network identifier defined in the information.
  • the destination property comprises a destination address.
  • the method according to the invention is relatively simple.
  • the method according to the invention is further advantageous in that it is more reliable and more efficient.
  • An embodiment of the method according to the invention is characterized in that the service identifier does not depend on a source property defined in the information.
  • the method according to the invention is kept as simple as possible.
  • An embodiment of the method according to the invention is characterized in that the destination property comprises a destination address, the source property comprising a source address or a source identifier.
  • a destination address (an address of the destination) is available in the information and is therefore easily retrievable.
  • An embodiment of the method according to the invention is characterized in that the service identifier comprises a service virtual local area network identifier, the source identifier comprising a customer virtual local area network identifier and the addresses comprising medium access control addresses.
  • a service virtual local area network identifier is also known as S-VLAN
  • a customer virtual local area network identifier is also known as C-VLAN
  • medium access control addresses are also known as MAC addresses.
  • the invention also relates to a first network unit for performing at least a part of a method for transmitting information from a source via the first network unit and a network and a second network unit to a destination, which first network unit comprises
  • An embodiment of the first network unit according to the invention is characterized in that a first service identifier is linked to a first customer interface port coupled to a first service interface port and a second service identifier is linked to a second customer interface port coupled to a second service interface port.
  • the construction of the first network unit is kept simple.
  • the first network unit By storing a relationship between a source property such as a source address as defined in the information and a port of the first customer part such as a customer access port or a customer interface port, the first network unit has got learning capabilities and can respond efficiently in case the destination sends back information to the source.
  • a source property such as a source address as defined in the information
  • a port of the first customer part such as a customer access port or a customer interface port
  • An embodiment of the first network unit according to the invention is characterized in that the first network unit further comprises - a first filter for filtering the information in response to a detection of the destination property comprising a broadcast indication.
  • an amount of traffic to be broadcasted can be reduced. As a result, the security, the reliability and the efficiency are further increased.
  • the invention yet also relates to a first customer part for use in a first network unit for performing at least a part of a method for transmitting information from a source via the first network unit and a network and a second network unit to a destination, which first network unit comprises
  • Embodiments of the first customer part according to the invention correspond with the embodiments of the first network unit according to the invention.
  • the invention further relates to a second network unit for performing at least a part of a method for transmitting information from a source via a first network unit and a network and the second network unit to a destination, which second network unit comprises
  • the second network unit By storing a relationship between a source property such as a source address as defined in the information and a port of the second customer part such as a customer access port or a customer interface port, the second network unit has got learning capabilities and can respond efficiently in case the destination sends back information to the source.
  • a source property such as a source address as defined in the information
  • a port of the second customer part such as a customer access port or a customer interface port
  • An embodiment of the second network unit according to the invention is characterized in that a first service identifier is linked to a first customer interface port coupled to a first service interface port and a second service identifier is linked to a second customer interface port coupled to a second service interface port.
  • the invention yet further relates to a second customer part for use in a second network unit for performing at least a part of a method for transmitting information from a source via a first network unit and a network and the second network unit to a destination, which second network unit comprises
  • Embodiments of the second customer part according to the invention correspond with the embodiments of the second network unit according to the invention.
  • Embodiments of the first and second network units according to the invention and of the first and second customer parts according to the invention correspond with the embodiments of the method according to the invention.
  • the invention is based upon an insight, inter alia, that conversions of customer identifiers into service identifiers result in prior art methods being complex, and is based upon a basic idea, inter alia, that - to keep the method according to the invention simple - a destination property is to be converted into a service identifier.
  • the invention solves the problem, inter alia, to provide a method as defined above which is relatively simple, and is advantageous, inter alia, in that the method is more reliable and more efficient.
  • Fig. 1 shows diagrammatically a system comprising a first network unit according to the invention coupled to a source, a second network unit according to the invention coupled to a destination and a network coupled to both network units according to the invention; and
  • Fig. 2 shows diagrammatically a network unit according to the invention comprising a customer part according to the invention.
  • the system shown in Fig. 1 comprises a first network unit 1 according to the invention coupled to a source 7, a second network unit 2 according to the invention coupled to a destination 9 and a network 8 coupled to both network units 1,2 according to the invention. Further network units 3,4 according to the invention are also coupled to the network 8.
  • the network units 1-4 according to the invention each comprise a customer part 5 according to the invention and a service part 6 according to the invention, shown in greater detail in Fig. 2 .
  • the network units 1-4 according to the invention shown in Fig. 2 each comprise a customer part 5 according to the invention and a service part 6 according to the invention.
  • the customer part 5 comprises a customer access port 10 coupled via a coupler 50 to customer interface ports 11-13.
  • the service part 6 comprises service interface ports 21-23 coupled to the customer interface ports 11-13 and coupled via a coupler 60 to a service network port 20.
  • the coupler 50 comprises a switch 58 coupled to the ports 10-13 and to a processor system 51, which is further coupled to a detector 52, a selector 53, a memory 54, a filter 55, an agent 56 and a further memory 57.
  • the coupler 60 comprises a switch 68 coupled to the ports 20-23 and to a processor system 61, which is further coupled to a tagger 62, a remover 63, a memory 64, a detector 65, a filter 66 and a further memory 67.
  • the source 7 and the destination 9 are for example subscriber equipment, the network units 1-4 are for example access multiplexers, and the network 8 is for example a metropolitan Ethernet network.
  • a virtual metropolitan area network identifier (a service identifier) is tagged to data packets (information) for routing the data packets through the network.
  • a method for transmitting information from a source 7 via a first network unit 1 and a network 8 and a second network unit 2 to a destination 9, a method comprises a step of using a service identifier for routing the information through the network 8.
  • This service identifier associates the network with a customer (a source) from which the data packet originated. This makes the known method relatively complex.
  • the virtual metropolitan area network identifier is to be derived from a virtual local area network identifier. This virtual local area network identifier needs to be allocated to the customer by the network.
  • the service identifier depends on a destination property defined in the information. So, a method according to the invention is defined by deriving the service identifier from a destination property (a property of the destination) as defined in the information to be transmitted. Then, it is no longer necessary to involve the virtual local area network identifier. As a result, the method according to the invention is relatively simple. The method according to the invention is further advantageous in that it is more reliable and more efficient.
  • the service identifier does not depend on a source property (a property of the source) as defined in the information, to keep the method according to the invention as simple as possible.
  • the destination property for example comprises a destination address (an address of the destination), and the source property for example comprises a source address or a source identifier.
  • the service identifier for example comprises a service virtual local area network identifier or S-VLAN, the source identifier for example comprises a customer virtual local area network identifier C-VLAN and the addresses for example comprise medium access control addresses or MAC addresses.
  • the network units 1-4 according to the invention are designed and operate as follows.
  • the network unit 1 comprises the customer part 5 comprising the customer access port 10 for receiving the information from the source 7. This information for example comprises packets, messages, frames or protocol data units.
  • the customer part 5 further comprises the customer interface ports 11-13 coupled to the customer access port 10 via the coupler 50.
  • the network unit 1 further comprises the service part 6 comprising the service interface ports 21-23 coupled to the customer interface ports 11-13 and comprising the service network port 20 coupled to the service interface ports 21-23 via the coupler 60 for supplying the information to the network 8.
  • the network unit 1 further comprises the tagger 62 for tagging a service identifier to this information. At the hand of this service identifier (S-VLAN), the information is routed through the network 8.
  • S-VLAN service identifier
  • the customer part 5 comprises the detector 52 coupled to the customer access port 10 via the processor system 51 and the switch 58 for detecting the destination property (destination MAC address) in the information.
  • a destination property is for example to be found at a predefined location in the information, such as a predefined field of a header.
  • the customer part 5 further comprises the selector 53 coupled to the detector 52 via the processor system 51 for selecting the service identifier (S-VLAN) in response to a detection of the destination property (destination MAC address).
  • S-VLAN service identifier
  • a table can be used. In case of the destination property (destination MAC address) being used before, the service identifier (S-VLAN) can be retrieved from this table. In case of the destination property (destination MAC address) being used for the first time, a default service identifier (S-VLAN) is to be generated.
  • a first service identifier is linked to a first customer interface port 11 coupled to a first service interface port 21 and a second service identifier is linked to a second customer interface port 12 coupled to a second service interface port 22.
  • a selection of a service identifier corresponds with a selection of an interface port 11,12 and vice versa.
  • the network unit 1 may further comprise the memory 54 for storing a relationship between a source property in the information and a port 10-13 of the customer part 5.
  • a source property such as a source address (source MAC address) as defined in the information and a port of the customer part 5 such as a customer access port 10 or a customer interface port 11-13
  • the network unit 1 has got learning capabilities and can respond efficiently in case the destination 9 sends back information to the source 7.
  • the source property (source MAC address) can be detected via the detector 52.
  • the network unit 1 may further comprise the filter 55 for filtering the information in response to a detection of the destination property (destination MAC address) comprising a broadcast indication.
  • a detection of the destination property comprising a broadcast indication.
  • the filter 55 for filtering the information to be broadcasted, which information comprises a destination property with a broadcast indication, such as a broadcast destination address (broadcast destination MAC address)
  • an amount of traffic to be broadcasted can be reduced.
  • the information to be broadcasted is for example broadcasted to allow the source 7 to report itself at the network units 1-4 or to allow the source 7 to collect information about an other entity without knowing how to particularly reach this specific entity.
  • the filtering is performed by detecting and in response to said detecting broadcasting less copies or no copies at all.
  • the network unit 1 may further comprise the agent 56 for inspecting sessions and for responding to queries.
  • inspecting sessions such as dynamic host configuration protocol sessions and by responding to queries such as address resolution protocol queries, broadcast floodings can be avoided.
  • inspecting is performed by detecting, and responding is performed by generating in response to said detecting.
  • the network unit 2 comprises the service part 6 comprising the service network port 20 for receiving the information from the network 8.
  • This information for example comprises packets, messages, frames or protocol data units, and has been tagged with the service identifier (S-VLAN).
  • the service part 6 further comprises the service interface ports 21-23 coupled to the service network port 20 via the coupler 60.
  • the network unit 2 further comprises the second customer part 5 comprising the customer interface ports 11-13 coupled to the service interface ports 21-23 and further comprising the customer access port 10 coupled to the customer interface ports 11-13 via the coupler 50 for supplying the information to the destination 9.
  • the network unit 2 further comprises the remover 63 for removing the service identifier (S-VLAN) from the information.
  • the customer part 5 comprises the further memory 57 for storing a relationship between a source property (source MAC address) in the information and a port 10-13 of the customer part 5.
  • a source property source MAC address
  • the network unit 2 has got learning capabilities and can respond efficiently in case the destination 9 sends back information to the source 7.
  • the source property source MAC address
  • a first service identifier is linked to a first customer interface port 11 coupled to a first service interface port 21 and a second service identifier is linked to a second customer interface port 12 coupled to a second service interface port 22.
  • one service identifier corresponds with one interface port 11,12 and vice versa.
  • the tagger 62 and the remover 63 form part of the service part 6. Alternatively, they might be located in the customer part 5 or outside the customer part 5 and the service part 6.
  • the service part 6 might further comprise the memory 64, the detector 65, the filter 66 and the further memory 67 respectively having similar functions as the memory 54, the detector 52, the filter 55 and the further memory 57 respectively as described above.
  • the network unit 1 comprises the customer part 5 comprising the ports 10-13 and the service part 6 comprising the ports 20-23 and the tagger 62, with customer part 5 comprising the detector 52 and the selector 53.
  • the network unit 2 comprises the customer part 5 comprising the ports 10-13 and the service part 6 comprising the ports 20-23 and the remover 63, with the customer part 5 comprising the further memory 57.
  • both network units 1 and 2 will be relatively identical.
  • the elements 52-57 (62-67) may partly or entirely be integrated into the processor system 51 (61) and/or may be hardware, software or a mixture of both.
  • a further aspect according to the invention comprises the information to be transmitted from the source 7 via the network unit 1 and the network 8 and the network unit 2 to the destination 9, which information is tagged with the service identifier (S-VLAN) for routing the information through the network 8, whereby the service identifier (S-VLAN) depends on the destination property (destination MAC address) defined in the information and does not depend on the source property (source MAC address) or the customer identifier (C-VLAN).
  • S-VLAN service identifier
  • the network units 1-4 may comprise digital subscriber line access multiplexers or bridges with the customer parts 5 and the service parts 6 being bridge components such as C-VLAN and S-VLAN aware bridge components as for example defined in IEEE DRAFT P802.1AD/D2.0.
  • the expression “for” in for example “for transmitting”, “for routing”, “for receiving”, “for supplying” etc. does not exclude that other functions are performed as well, simultaneously or not.
  • the expressions “X coupled to Y” and “a coupling between X and Y” and “coupling/couples X and Y” etc. do not exclude that an element Z is in between X and Y.
  • the expressions “P comprises Q” and “P comprising Q” etc. do not exclude that an element R is comprised/included as well.
  • the terms “a” and “an” do not exclude the possible presence of one or more pluralities.
  • the step of using a service identifier for routing the information through the network does not exclude further steps, like for example, inter alia, the steps described for Figures 1 and 2 .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Claims (8)

  1. Procédé de transmission d'une information d'une source (7) à une destination (9) par le biais d'une première unité de réseau (1), d'un réseau (8) et d'une deuxième unité de réseau (2), ledit procédé comprenant les étapes suivantes :
    utilisation d'un identifiant de service pour acheminer l'information à travers le réseau (8) sans faire intervenir un identifiant de réseau local virtuel de client, l'identifiant de service comprenant un identifiant de réseau local virtuel de service et l'identifiant de service dépendant d'une propriété de destination définie dans l'information et non sur une adresse source ou l'identifiant de réseau local virtuel de client défini dans l'information, la propriété de destination comprenant une adresse de destination.
  2. Procédé selon la revendication 1, caractérisé en ce que les adresses comprennent des adresses de commande d'accès au support.
  3. Première unité de réseau (1) pour mettre en oeuvre au moins une partie d'un procédé de transmission d'une information d'une source (7) à une destination (9) par le biais de la première unité de réseau (1), d'un réseau (8) et d'une deuxième unité de réseau (2) comme défini dans la revendication 1, ladite première unité de réseau (1) comprenant :
    - une première partie de client (5) comprenant un port d'accès de client (10) pour recevoir l'information de la part de la source (7) et comprenant des ports d'interface de client (11-13) connectés au port d'accès de client (10) ;
    - une première partie de service (6) comprenant des ports d'interface de service (21-23) connectés aux ports d'interface de client (11-13) et comprenant un port de réseau de service (20) connecté aux ports d'interface de service (21-23) pour délivrer l'information au réseau (8) ; et
    - un référenceur (62) pour référencer un identifiant de service à l'information ; la première partie de client (5) comprenant
    - un premier détecteur (52) connecté au port d'accès de client (10) pour détecter une propriété de destination dans l'information ; et
    - un premier sélecteur (53) connecté au premier détecteur (52) pour sélectionner l'identifiant de service en réponse à une détection d'une propriété de destination, l'identifiant de service comprenant un identifiant de réseau local virtuel de service et ne dépendant pas d'une adresse source ou d'un identifiant de réseau local virtuel de client défini dans l'information, la propriété de destination comprenant une adresse de destination ; la première unité de réseau (1) étant configurée pour acheminer l'information à travers le réseau (8) en utilisant l'identifiant de service sans faire intervenir l'identifiant de réseau local virtuel de client.
  4. Première unité de réseau (1) selon la revendication 3, caractérisée en ce qu'un premier identifiant de service est lié à un premier port d'interface de client (11) connecté à un premier port d'interface de service (21) et un deuxième identifiant de service est lié à un deuxième port d'interface de client (12) connecté à un deuxième port d'interface de service (22).
  5. Première unité de réseau (1) selon la revendication 3 ou 4, caractérisée en ce que la première unité de réseau (1) comprend en outre
    - une première mémoire (54) pour stocker une relation entre une propriété de source dans l'information et un port (10-13) de la première partie de client (5).
  6. Première unité de réseau (1) selon la revendication 3, 4 ou 5, caractérisée en ce que la première unité de réseau (1) comprend en outre
    - un premier filtre (55) pour filtrer l'information en réponse à une détection de la propriété de destination comprenant une indication de diffusion.
  7. Première unité de réseau (1) selon la revendication 3, 4, 5 ou 6, caractérisée en ce que la première unité de réseau (1) comprend en outre
    - un premier agent (56) pour inspecter les sessions et pour répondre aux requêtes.
  8. Première partie de client (5) à utiliser dans une première unité de réseau (1), comme définie dans la revendication 3, pour mettre en oeuvre au moins une partie d'un procédé de transmission d'une information d'une source (7) à une destination (9) par le biais de la première unité de réseau (1), d'un réseau (8) et d'une deuxième unité de réseau (2), ladite première partie de client (5) comprenant :
    un port d'accès de client (10) pour recevoir l'information de la part de la source (7) et des ports d'interface de client (11-13) connectés au port d'accès de client (10) ; un référenceur (62) pour référencer un identifiant de service à l'information ; un premier détecteur (52) connecté au port d'accès de client (10) pour supprimer la propriété de destination dans l'information ; et un premier sélecteur (53) connecté au premier détecteur (52) pour sélectionner l'identifiant de service en réponse à une détection de la propriété de destination, l'identifiant de service comprenant un identifiant de réseau local virtuel de service et ne dépendant pas d'une adresse source ou d'un identifiant de réseau local virtuel de client défini dans l'information, la propriété de destination comprenant une adresse de destination ; la première partie de client (5) étant configurée pour acheminer l'information à travers le réseau (8) en utilisant l'identifiant de service sans faire intervenir l'identifiant de réseau local virtuel de client.
EP04292865A 2004-12-03 2004-12-03 Procédé de transmission d'informations entre une source et une destination par une première unité de réseau, un réseau et une seconde unité de réseau Expired - Lifetime EP1667380B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP04292865A EP1667380B1 (fr) 2004-12-03 2004-12-03 Procédé de transmission d'informations entre une source et une destination par une première unité de réseau, un réseau et une seconde unité de réseau
PCT/EP2005/012226 WO2006058612A1 (fr) 2004-12-03 2005-11-11 Procédé de transmission d’informations depuis une source par le biais d’une première unité de réseau et d’un réseau et d’une seconde unité de réseau vers une destination
KR1020077012512A KR101141395B1 (ko) 2004-12-03 2005-11-11 소스로부터 제1 네트워크 유닛, 네트워크, 및 제2 네트워크유닛을 경유하여 목적지로 정보를 송신하는 방법
CNB2005101257663A CN100542134C (zh) 2004-12-03 2005-12-01 用于从源发送信息到目的地的方法
US11/291,964 US8094657B2 (en) 2004-12-03 2005-12-02 Method for transmitting information from a source via a first network unit and a network and a second network unit to a destination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04292865A EP1667380B1 (fr) 2004-12-03 2004-12-03 Procédé de transmission d'informations entre une source et une destination par une première unité de réseau, un réseau et une seconde unité de réseau

Publications (2)

Publication Number Publication Date
EP1667380A1 EP1667380A1 (fr) 2006-06-07
EP1667380B1 true EP1667380B1 (fr) 2013-02-27

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US (1) US8094657B2 (fr)
EP (1) EP1667380B1 (fr)
KR (1) KR101141395B1 (fr)
CN (1) CN100542134C (fr)
WO (1) WO2006058612A1 (fr)

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CN1783845A (zh) 2006-06-07
US8094657B2 (en) 2012-01-10
US20060120364A1 (en) 2006-06-08
CN100542134C (zh) 2009-09-16
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WO2006058612A1 (fr) 2006-06-08
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